Recent content by Paul Buchroeder

Thank you for you input, that was very helpful indeed. I think multiple things came together here. Having a FF camera for the first time (being used to vignetting from a APS-C sensor) , the actual light condition that day and being over concerned due some real lens issues I recently had (with...

Good point! I have downloaded Canon DPP 4.8.20.0 and applied the lens correction, saved it as JPEG. The over-manipulated version looks pretty close the ACR lens correction:

Morning all, I will try to get this clarified as good as I can. The original picture (without any post processing - opened in ACR 10.3 / PS, reduced size to 1600x1067px and saved as JPEG) looks like this one: You can already see the vignetting in the preview but to better visualise the...

Appreciate it sureshot. That would be Northamptonshire. Its all packed and ready for CPS. Lets wait and see what they are going to do with it.

Hi Willi, My original output (quickly developed from RAW and saved in JPEG) looks like the following: I just over manipulated the pictures via Photoshop: Image->Adjustments->Equalize to underline the strength and pattern of vignetting.

Thank you for your helpful comments. Troubleshooting was a bit tricky since I neither had another tele lens nor another full frame body. I have tested the 5D with a EF 24-105 at 105 mm where I couldn't see much of vignetting. Due to the crop factor I couldn't seen much vignetting with the 7D...

I had a look through the lens from the front, after I detached it from the camera. the light path appears circular at 100mm throughout till 400mm. You would definitely rule out the camera here?

Hi Bob, I have just taken a series of 4 pictures without IS (usually I use mode 2). There are slight movements visible in the equalised versions: When you look at the pictures you can see that the ring is not centred (open to the top and slightly too far left) is that the same for...

Hi, Thank you for your quick response. Having a bit of vignetting is okay for me and the lens profile in LR or camera raw should be able to remove the shadows. I have used the original lens hood (ET-83D) and no filter has been applied at all times. I have just taken these two pictures to...

Dear community, I would need your technical expertise for the following question/Issue. I started to move from a Canon 7D MK I to a Canon 5D MK IV. Now working with a full frame camera I expected more vignetting around 200 to 400mm focal length. However the type of vignetting I discovered...